<template>
  <div class="login-container">
    <!-- 导航栏 -->
    <van-nav-bar class="page-nav-bar" title="标题">
      <van-icon slot="left" name="cross" @click="$router.back()" />
    </van-nav-bar>

    <!-- 登录表单 -->
    <van-form ref="loginForm" @submit="onSubmit">
      <van-field
        name="mobile"
        v-model="user.mobile"
        placeholder="请输入手机号"
        :rules="userFormRules.mobile"
        type="number"
        maxlength="11"
      >
        <i slot="left-icon" class="font heimashouji"></i>
      </van-field>
      <van-field
        v-model="user.code"
        name="password"
        placeholder="请输入验证码"
        :rules="userFormRules.code"
        maxlength="6"
      >
        <i slot="left-icon" class="font heimayanzhengma"></i>
        <template #button>
          <van-count-down
            v-if="isCountDownShow"
            :time="1000 * 5"
            format="ss s"
            @finish="isCountDownShow = false"
          />
          <van-button
            v-else
            class="send-sms-btn"
            native-type="button"
            size="small"
            type="primary"
            @click="onSendSms"
            >发送验证码</van-button
          >
        </template>
      </van-field>
      <div class="login-btn-wrap" style="margin: 16px;">
        <van-button class="login-btn" block type="info" native-type="submit"
          >提交</van-button
        >
      </div>
    </van-form>
  </div>
</template>

<script>
import { login, sendSms } from '@/api/user'
export default {
  name: 'LoginIndex',
  components: {},
  data () {
    return {
      user: {
        mobile: '',
        code: ''
      },
      userFormRules: {
        mobile: [
          { required: true, message: '手机号不能为空' },
          { pattern: /^1[3|5|7|8]\d{9}$/, message: '手机格式错误' }
        ],
        code: [
          { required: true, message: '验证码不能为空' },
          { pattern: /^\d{6}$/, message: '验证码格式错误' }
        ]
      },
      isCountDownShow: false
    }
  },
  methods: {
    async onSubmit (values) {
      console.log('submit', values)
      const user = this.user
      try {
        const { data } = await login(user)
        this.$store.commit('setUser', data.data)
        this.$toast.success('登录成功')
        this.$router.back()
      } catch (error) {
        if (error.response.status === 400) {
          console.log('手机号或验证码错误')
        } else {
          console.log('登录失败，请稍后重试', error)
        }
      }
    },

    async onSendSms () {
      console.log(this.onSendSms)
      try {
        await this.$refs.loginForm.validate('mobile')
        console.log('验证成功')
      } catch (err) {
        return console.log('验证失败', err)
      }
      this.isCountDownShow = true

      try {
        await sendSms(this.user.mobile)
        this.$toast('发送成功')
      } catch (err) {
        console.log('发送失败', err)
        this.isCountDownShow = false
        if (err.response.status === 429) {
          this.$toast('发送太频繁了，请稍微重试')
        } else {
          this.$toast('发送失败，请稍后重试')
        }
      }
    }
  }
}
</script>

<style scoped lang="less">
.login-container {
  .font {
    font-size: 37px;
  }
  .send-sms-btn {
    width: 160px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
    border: none;
  }
  .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
  .page-nav-bar {
    background-color: #3296fa !important;
    .van-nav-bar__title,
    .van-icon {
      color: #fff !important;
    }
  }
}
</style>
